'''
Created on September 19, 2017

@author: Susan
'''

def isVowel(ch):
    if ch =='e':
        return True
    if ch == 'a':
        return True
    if ch == 'i':
        return True
    if ch == 'o':
        return True
    if ch == 'u':
        return True
    return False

def isVowel2(ch):
    c = "aeiou".count(ch)
    if c > 0:
        return True
    
def isVowel3(ch):
    return "aeiou".count(ch) > 0

def isVowel4(ch):
    if ch in "aeiou": 
        return True
    else: 
        return False
    
def isVowel5(ch):
    return ch in "aeiou"


print "a", isVowel("a")
print "x", isVowel("x")
print "a", isVowel2("a")
print "x", isVowel2("x")
print "a", isVowel3("a")
print "x", isVowel3("x")
print "a", isVowel4("a")
print "x", isVowel4("x")
print "a", isVowel5("a")
print "x", isVowel5("x")